Same 4G and ports. The MR400 costs more - for dual-band Wi-Fi 5.

Short answer

Archer MR400 - AC1200: 300 + 867 Mbit/s. TL-MR150 - 2.4 GHz only and cheaper.

Key differences

SpecTP-Link TL-MR150TP-Link Archer MR400
Type4G LTE router4G LTE router
Wi-FiWi-Fi 4, N300Wi-Fi 5, AC1200
Wi-Fi speed300 Mbit/s300 + 867 Mbit/s
Bands2.4 GHz2.4 + 5 GHz
WAN1 × 100 Mbit/s + SIM1 × 100 Mbit/s + SIM
LAN3 × 100 Mbit/s3 × 100 Mbit/s
4G LTEbuilt-inbuilt-in
Antennas2 externalexternal + internal
Dimensions, weight202×141×33.6 mm202×141×33.6 mm
Pricecurrent pricescurrent prices

Specs come from the device pages on Smartphone.ua.

Wi-Fi

300 vs 300 + 867 Mbit/s.

What's the same

Built-in 4G LTE, WAN and 3 LAN at 100 Mbit/s, a 202×141 mm body.

Who it's for

For a laptop and smart TV the MR400 is better; for a few phones the MR150 is enough.

Verdict: who should buy which

  • Fast Wi-Fi - TP-Link Archer MR400.
  • Saving money - TP-Link TL-MR150.

FAQ

Is there VPN?
Not according to the spec sheets.

Is the body the same?
Yes.

Which is cheaper?
The TL-MR150.

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